Raytheon Beech Baron E55 - Page 565

BARON
55
AND
58
SHOP
MANUAL
AUTOPILOT
TROUBLESHOOTING
GUIDE
(Continued)
Indication
Probable Cause
Remarks
6.
Continuious
control
wheel
a.
Turn
coordinator
faulty.
a.
Replace
turn
coordinator.
oscillation
in
smooth
air.
b.
Improper
gyro
speed
or
b.
Adjust
system
pressure
as
excessive
vacuum
(pressure)
in
outlined
in
this
section.
system
7.
No
turns
or
turns
in
one
direction
a.
Faulty
turn
coordinator,
a.
Replace
turn
coordinator.
only
in
response
to
turn
control
or
on
all
modes
of
navigation
coupler
operation.
b.
Faulty
control
amplifier,
b.
Replace
control
amplifier.
8.
Airplane
rolls
on
one
direction
a.
Servo
improperly
phased.
a.
Plumb
as
noted. Refer
to
Figure
I
either left
or
right.
11-45..
b.
Turn
coordinator
not
plumbed
b. Plumb
as
noted.
Refer
to
Figure
I
properly.
11-45.
9.
Airplane
turns
in
the
wrong
a.
Nav
input signal
reversed.
a.
Reverse
connectors
to
VOR.
direction in CAP
and
TRK
modes.
10.
No
airplane
response
from
a.
Faulty
turn
coordinator
gyro,
a.
Replace
turn
coordinator.
navigation coupler
in
any
mode,
ground
check shows normal.
b.
Obstruction
in
vacuum
(pressure)
b.
Check
for
foreign
matter.
lines.
11.
Airplane
fails
to
turn
to
and hold
a.
Faulty magnetic
heading
sensor. a.
Replace
magnetic
heading
magnetic
headings.
sensor.
b.
Faulty heading
selector resolver. b.
Replace
controller/
amplifier.
c.
Faulty
controller/am
plifier.
c.
Replace
controllerl
amplifier.
12.
Magnetic
headings consistantly
a.
Heading
sensor
misaligned
in
a.
Check
for
proper
installation.
high
or
low,
airplane.
b.
Heading
azimuth
dial
shifted
on
b.
Tighten
screw
and
recalibrate.
shaft.
c.
Improper
adjustment
or
c.
Calibrate
for
the
magnetic
controller/amplifier.
cardinal
points.
13.
Cardinal
headings
inaccurate,
a.
Controller/amplifier improperly
a.
Calibrate
for
the
magnetic
adjusted,
cardinal
points.
b. Leak in
servo
system.
b. Check
for leaks.
b. Low
primary
vacuum
(pressure).
b.
Adjust
system
as
outlined
in
this
section.
1
4.
Cardinal
headings
accurate
but
a.
Faulty
heading
sensor.
a.
Replace
the
heading
sensor.
intermediate
headings
inaccurate.
b.
Faulty
controller/amplifier.
b.
Replace
controllerl
amplifier.
15.
Insufficient
or no
control
in
CAP
a.
Faulty
controller/am
plifier.
a.
Replace
controller/amplifier.
and
TRK
modes.
b.
Faulty
omni
converter.
b.
Replace
omni
converter.
c.
Insufficient
signal
from omni.
c.
Repair
or
replace
omni
indicator.
515
11-85